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# Guide for Animal Drug In-use Stability Studies
- URL: https://www.fdaweb.com/guide-for-animal-drug-in-use-stability-studies/
- Published: 2017-01-04T12:00:00.000Z
- Updated: 2026-09-14T21:57:45.000Z
- Author: David McFarland
- Tags: FDA Policy/General, #legacy-id-D5137635

*Federal Register* Notice: FDA has made available draft guidance #242 entitled “In-Use Stability Studies and Associated Labeling Statements for Multiple-Dose Injectable Animal Drug Products.” The document discusses in-use stability testing, which is to establish a period of time during which a multiple-dose drug product may be used while retaining acceptable quality specifications once the container is opened (e.g., after a container has been needle-punctured). To view the notice, click [here](https://www.gpo.gov/fdsys/pkg/FR-2017-01-04/pdf/2016-31855.pdf?ref=fdaweb.com).